If you don't like being paired with random people, which most don't, try going in the Squid locator section to find people around your skill level.
As for game play, here are some top tips that improved my ability ten-fold -
- Watch your game play, it helps show what you did wrong and right. (If you don't have a capture card, I use my phone!)
- In 1v1 gunfights, try moving side to side by quickly swimming to the side then popping up to get your opponents aim off.
- Don't always blame your teammates! Be aware you can make mistakes just like them.
- Practicing at the test range by shooting the dummy's over and over from weird angles and shots can improve your aim by a lot.
- Don't main weapons (It's cool to be most comfortable with a specific type of gun, for example sloshers, by try to diversify your weapon choices). The other reason is so that if you're not doing well with a particular weapon, you can switch to another just as easy and pick your game up again.
I hope this helped, honestly these tips got me from C+ to A+. Splat on!